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The aim of this work to study an efficient laccase producing fungus Ganoderma leucocontextum, which was identified by ITS regions of DNA and phylogenetic tree was constructed. This study showed the laccase first-time from G. leucocontextum by using medium containing guaiacol. The growth cultural (pH, temperature, incubation days, rpm) and nutritional (carbon and nitrogen sources) conditions were optimized, which enhanced the enzyme production up to 4.5-folds. Laccase production increased 855 U/L at 40 °C. The pH 5.0 was suitable for laccase secretion (2517 U/L) on the 7th day of incubation at 100 rpm (698.3 U/L). Glucose and sucrose were good carbon source to enhance the laccase synthesis. The 10 g/L beef (4671 U/L) and yeast extract (5776 U/L) were the best nitrogen source for laccase secretion from G. leucocontextum. The laccase was purified from the 80% ammonium sulphate precipitations of protein identified by nucleotides sequence. The molecular weight (65.0 kDa) of purified laccase was identified through SDS and native PAGE entitled as Glacc110. The Glacc110 was characterized under different parameters. It retained > 90% of its activity for 16 min incubation at 60 °C in acidic medium (pH 4.0). This enzyme exerted its optimal activity at pH 3.0 and temperature 70 °C with guaiacol substrate. The catalytic parameters K m and V max was 1.658 (mM) and 2.452 ( mM/min), respectively. The thermo stability of the laccase produced by submerged fermentation of G. leucocontextum has potential for industrial and biotechnology applications. The results remarked the G. leucocontextum is a good source for laccase production.

For centuries, Ganoderma has been used as a traditional medicine in Asian countries to prevent and treat various diseases. Numerous publications are stating that Ganoderma species have a variety of beneficial medicinal properties, and investigations on different metabolic regulations of Ganoderma species, extracts or isolated compounds have been performed both in vitro and in vivo. However, it has frequently been questioned whether Ganoderma is simply a dietary supplement for health or just a useful \"medication\" for restorative purposes. More than 600 chemical compounds including alkaloids, meroterpenoids, nucleobases, nucleosides, polysaccharides, proteins, steroids and triterpenes were extracted and identified from Ganoderma, with triterpenes serving as the primary components. In recent years, Ganoderma triterpenes and other small molecular constituents have aroused the interest of chemists and pharmacologists. Meanwhile, considering the significance of the triterpene constituents in the development of new drugs, this review describes 495 compounds from 25 Ganoderma species published between 1984 and 2022, commenting on their source, biosynthetic pathway, identification, biological activities and biosynthesis, together with applications of advanced analytical techniques to the characterization of Ganoderma triterpenoids.

This study reports for the first time the occurrence of Ganoderma ellipsoideum , a wood-decaying fungus, in Vietnam. Species identification was achieved through morphological characterization and sequencing of the internal transcribed spacer region of nuclear ribosomal DNA. Phylogenetic analysis confirmed that the Vietnamese specimens clustered within the Ganoderma ellipsoideum taxon, supported by high bootstrap and posterior probability values (90%/1.00). Morphological features further indicated its placement within the Ganoderma applanatum–australe complex. In vitro cytotoxicity assays revealed that the ethanol extract and its sub-fractions (n-hexane, ethyl acetate, aqueous) exerted inhibitory effects on human breast cancer MCF-7 cells, with the ethyl acetate fraction showing the strongest activity. In silico molecular docking demonstrated strong binding affinities between major triterpenoid compounds and key breast cancer-related proteins, including HPA, MELK, CK2α, and NUDT5. These findings not only establish Ganoderma ellipsoideum as a newly recorded species in Vietnam, but also suggest its promising potential as a source of anticancer agents.

Fungal mycelium cultures are an alternative to natural sources in order to obtain valuable research materials. They also enable constant control and adaptation of the process, thereby leading to increased biomass growth and accumulation of bioactive metabolites. The present study aims to assess the biosynthetic potential of mycelial cultures of six Ganoderma species: G. adspersum, G. applanatum, G. carnosum, G. lucidum, G. pfeifferi, and G. resinaceum. The presence of phenolic acids, amino acids, indole compounds, sterols, and kojic acid in biomass extracts was determined by HPLC. The antioxidant and cytotoxic activities of the extracts and their effects on the inhibition of selected enzymes (tyrosinase and acetylcholinesterase) were also evaluated. The total content of phenolic acids in the extracts ranged from 5.8 (G. carnosum) to 114.07 mg/100 g dry weight (d.w.) (G. pfeifferi). The total content of indole compounds in the extracts ranged from 3.03 (G. carnosum) to 11.56 mg/100 g d.w. (G. lucidum) and that of ergosterol ranged from 28.15 (G. applanatum) to 74.78 mg/100 g d.w. (G. adspersum). Kojic acid was found in the extracts of G. applanatum and G. lucidum. The tested extracts showed significant antioxidant activity. The results suggest that the analyzed mycelial cultures are promising candidates for the development of new dietary supplements or pharmaceutical preparations.

The chemical characterization and antioxidant potential of twelve wild strains of Ganoderma sp. from Ghana, nine (LS1–LS9) of which were found growing wild simultaneously on the same dying Delonix regia tree, were evaluated. Parameters evaluated included the nutritional value, composition in sugars, fatty acids, phenolic and other organic compounds and some vitamins and vitamin precursors. Antioxidant potential was evaluated by investigating reducing power, radical scavenging activity and lipid peroxidation inhibition using five in vitro assays. Protein, carbohydrate, fat, ash and energy contents ranged between 15.7–24.5 g/100 g·dw, 73.31–81.90 g/100 g, 0.48–1.40 g/100 g, 0.68–2.12 g/100 g ash and 396.1–402.02 kcal/100 g, respectively. Fatty acids such as linoleic, oleic and palmitic acids were relatively abundant. Free sugars included rhamnose, fructose, mannitol, sucrose and trehalose. Total tocopherols, organic acids and phenolic compounds’ content ranged between 741–3191 µg/100 g, 77–1003 mg/100 g and 7.6–489 µg/100 g, respectively. There were variations in the β-glucans, ergosterol and vitamin D2 contents. The three major minerals in decreasing order were K > P > S. Ganoderma sp. strain AM1 showed the highest antioxidant activity. This study reveals, for the first time, chemical characteristics of Ganoderma spp. which grew simultaneously on the same tree.

A white-rot basidiomycete Ganoderma spp. has long been used as a medicinal mushroom in Asia, and it has an array of pharmacological properties for immunomodulatory activity. There have been many reports about the bioactive components and their pharmacological properties. In order to analyze the current status of Ganoderma products, the detailed process of cultivation of Ganoderma spp. and development of their products are restated in this review article. These include the breeding, cultivating, extracting bioactive component, and processing Ganoderma products, etc. This article will expand people’s common knowledge on Ganoderma, and provide a beneficial reference for research and industrial production.

Natural mycelial exopolysaccharide (EPS) and endopolysaccharide (ENS) extracted from bioreactor-cultivated European Ganoderma applanatum mushrooms are of potential high commercial value for both food and adjacent biopharmaceutical industries. In order to evaluate their potential toxicity for aquaculture application, both EPS (0.01–10 mg/mL) and ENS (0.01–10 mg/mL) extracts were tested for Zebrafish Embryo Toxicity (ZFET); early development effects on Zebrafish Embryos (ZE) were also analyzed between 24 and 120 h post-fertilization (HPF). Both EPS and ENS are considered non-toxic with LC50 of 1.41 mg/mL and 0.87 mg/mL respectively. Both EPS and ENS did not delay hatching and teratogenic defect towards ZE with <1.0 mg/mL, respectively. No significant changes in the ZE heart rate were detected following treatment with the two compounds tested (EPS: 0.01–10 mg/mL: 176.44 ± 0.77 beats/min and ENS: 0.01–10 mg/mL: 148.44 ± 17.75 beats/min) compared to normal ZE (120–180 beats/min). These initial findings support future pre-clinical trials in adult fish models with view to safely using EPS and ENS as potential feed supplements for supplements for development of the aquaculture industry.

Ganoderma lingzhi ( G. lingzhi ), G. sinense , G. applanatum , etc. belongs to the Ganoderma genus of polypore mushrooms which contain rich polysaccharides valuable for nutrition and positive medicinal effects. In order to evaluate polysaccharide content in Ganoderma mycelia obtained in the fermentation process quickly and accurately, in this work we employed infrared spectroscopy to examine different Ganoderma stains of samples from diversified sources. Through mid-infrared (mid-IR) spectroscopy, we could identify the most relevant spectral bands required for polysaccharide evaluation, and through near-infrared (NIR) spectroscopy, we could establish the quantification model for making satisfactory prediction of polysaccharide ingredient content. As such, we have achieved an effective and convenient approach to quantitative assessment of the total polysaccharides in Ganoderma mycelia but also demonstrated that infrared spectroscopy can be a powerful tool for quality control of Ganoderma polysaccharides obtained from industrial production.

The phytopathogenic status of G. orbiforme as the causative agent of basal stem rot on oil palm has masked its biotechnological potential. This study explored its growth profile in an Air-L-Shaped Bioreactor along with the antibacterial and antioxidant activities of its extracellular (EPS) and intracellular polysaccharides (IPS), and evaluated their toxicity using the zebrafish embryo toxicity (ZFET) assay. The biomass pellet peaked at 2.53 ± 0.44 g/L, with EPS and IPS yields reaching 0.15 ± 0.06 g/L (Day 6) and 0.06 ± 0.01 g/L (Day 10), respectively. Morphological observations revealed that the hairy starburst-shaped pellet correlated with peak EPS release. Then, the antibacterial assays revealed EPS as the better antibacterial agent compared to IPS, highlighted by a broader spectrum activity with the most prominent inhibition against Streptomyces griseus and Staphylococcus epidermidis with a minimum inhibitory concentration of 5 mg/mL. Both EPS and IPS showed strong antioxidative capabilities, demonstrated in DPPH assay—IC 50 of 15.59 ± 0.42 mg/mL for EPS and 26.85 ± 1.60 mg/mL for IPS, and FRAP assay—74.30 ± 0.38 mM Fe(II)/g for EPS and 74.18 ± 0.62 mM Fe(II)/g for IPS. Lastly, the LC 50 values of 1.88 mg/mL and 1.56 mg/mL for EPS and IPS, respectively, demonstrated their harmless nature in the ZFET assay. After 120 h of post-fertilization, the zebrafish embryos did not show abnormalities, with vital organs and structures remaining intact (fins, guts and melanophores). Collectively, this study underscores the importance of exploring the untapped potential of G. orbiforme while ensuring its safety status, opening a new possibility of bioprospecting a phytopathogen for oil palm. From a sustainable perspective, the production pattern and bioactivities are well aligned with SDG 15: Life on Land and SDG 3: Good Health and Well-Being, respectively.

Ganoderma is a genus of medically important fungus that contains at least 80 species, many of which have not been properly evaluated for their anticancer potential. This study was conducted to assess the cytotoxic activity of the mycelial biomass of Ganoderma weberianum-sichuanese isolated from the Lower Volta River Basin of Ghana. The nuclear ribosomal internal transcribed spacer (ITS) region was analyzed to determine the phylogenetic position of this native ganoderma isolate. We then tested its cytotoxic activity against the human carcinoma cell line PC-3 (human prostate), Jurkat (human T lymphoblastoid cell line), derived from an acute T cell leukemia, and PMDC05, a plasmacytoid dendritic cell (pDC) derived from acute leukemia using the 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay. The ITS phylogenetic analysis demonstrated that this native Ghanaian ganoderma isolate belongs to the Ganoderma weberianum-sichuanese species complex. Fractions of the mycelial biomass were found to inhibit significantly (≤ 0.05%) the proliferation and survival of the three cancer cell lines, PC-3, PMDC05, and Jurkat with increasing concentrations and with IC 50 values of 27.73 ± 5.25, 21.31 ± 2.40 and 17.09 ± 0.86 μg/mL, respectively compared to Chang liver cells (CVCL_0238) with IC 50 value of 75.41 ± 1.95 μg/mL. To the best of our knowledge, these findings demonstrated for the first time, that specific constituents of Ganoderma weberianum-sichuanese are selectively cytotoxic to the three human cancer cell lines, suggesting their potential efficacy in the treatment of malignancies. Future studies to isolate and characterize the biologically active molecules are warranted.